candidate key

возможный ключ (при криптоанализе).

English-Russian cryptological dictionary . 2014.

Смотреть что такое "candidate key" в других словарях:

  • Candidate Key —   [dt. »Sekundärschlüssel«], Schlüssel …   Universal-Lexikon

  • Candidate key — In the relational model, a candidate key of a relvar (relation variable) is a set of attributes of that relvar such that # at all times it holds in the relation assigned to that variable that there are no two distinct tuples with the same values… …   Wikipedia

  • candidate key — potencialusis raktas statusas T sritis informatika apibrėžtis Unikalus eilutės identifikatorius sąryšyje (duomenų bazėje). Potencialusis raktas gali būti paprastas (iš vieno atributo) arba sudėtinis (iš kelių atributų). Kiekvienas sąryšis privalo …   Enciklopedinis kompiuterijos žodynas

  • Key, David M(cKendree) — born Jan. 27, 1824, Greene county, Tenn., U.S. died Feb. 3, 1900, Chattanooga, Tenn. U.S. politician. Admitted to the bar in 1850, he practiced law in Chattanooga and became active in Democratic Party politics. He opposed secession by the South… …   Universalium

  • Unique key — In relational database design, a unique key can uniquely identify each row in a table, and is closely related to the Superkey concept. A unique key comprises a single column or a set of columns. No two distinct rows in a table can have the same… …   Wikipedia

  • Foreign key — In the context of relational databases, a foreign key is a referential constraint between two tables. [ [http://www.visualcase.com/kbase/database basics foreign keys.htm For a simpler visualization, see VisualCase.com] ] The foreign key… …   Wikipedia

  • Alternate key — You may have meant the Alt key on the keyboard. An alternate key (or secondary key) is any candidate key which is not selected to be the primary key (PK).For example, a relational database with a table employee could have attributes like employee …   Wikipedia

  • Foreign Key — Ein Schlüssel dient in einer Relationalen Datenbank dazu, die Tupel einer Relation eindeutig zu identifizieren. Anschaulich kann man sich eine Relation als Tabelle vorstellen. Ein Schlüssel für eine solche Tabelle ist dann eine Gruppe von Spalten …   Deutsch Wikipedia

  • Primary Key — Ein Schlüssel dient in einer Relationalen Datenbank dazu, die Tupel einer Relation eindeutig zu identifizieren. Anschaulich kann man sich eine Relation als Tabelle vorstellen. Ein Schlüssel für eine solche Tabelle ist dann eine Gruppe von Spalten …   Deutsch Wikipedia

  • Surrogate key — A surrogate key in a database is a unique identifier for either an entity in the modeled world or an object in the database. The surrogate key is not derived from application data. Definition Two definitions of a surrogate appear in the… …   Wikipedia

  • Compound key — In database design, a compound key is a key that consists of 2 or more attributes that uniquely identify an entity occurrence. Each attribute that makes up the compound key is a simple key in its own right. This is often confused with a composite …   Wikipedia

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